SolSec Labs: Virtual labs for learning smart contract security

SolSec Labs is a web-based application that provides interactive training labs for blockchain developers, especially students eager to learn more about smart contract security to gain practical knowledge (Fig. 1). It teaches solidity and smart contract security skills through hands-on experience. The easy-to-understand environment enables students and early developers to immediately apply newly learned secure coding practices to their ongoing projects. Currently, it consists of a total of 10 labs crafted using examples taken from the most severe real-world vulnerabilities. Every lab teaches developers about the related vulnerability; exploitation methods; preventive and remediation measures; and, finally, a step-by-step list of lab tasks to perform to secure the presented vulnerable code.